Harvester cutter-bar



(No Model.)

J. L. RIELEY.

HARVESTER GUTTER BAR.

No. 453,705. Patented June 9,1891.

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UNiTEn STATES PATENT OFFICE.

JERRY Ii. RIELEY, OF TROUTVILLE, VIRGINIA.

HARVESTER CUTTER-BAR.

SEECIFICATION forming part of Letters Patent No. 453,705, dated J une 9,1891.

Application ledDecember 15, 1890. Serial No. 374,777. (No model.)

T0 if/ZZ whom, t 71mg/ concern.-

Be it known that I, JERRY L. RIELEY, a citizen of the United States ofAmerica, residing at Troutville, in the county of Botetourt and State ofVirginia, have invented certain new and useful Improvements in HarvesterCutter-Bars, of which the followingI is a specilication, reference beinghad therein to the accompanyin g drawings.

This invention relates to an improvement in harvester cutter-bars ofthat class in which the knives are held in place by means of alongitudinally-movable locking-bar having lugs or projections engagingrecesses in the knives, and has for its objects, first, to provide meansfor reciprocating the locking-bar, so as to lock or release all theknives at one operation; secondly, to providea knife-bar having meansfor holding the knives securely in place against vertical and lateral.play 1ndependently of the locking-bar; thirdly, to provide means forpreventing any vertical or lateral play of the locking-bar, and,finally, to provide a cheap, eiiicient, and durable cutterbar.

The invention will rst be described in connection with the accompanyingdrawings, and then pointed out in the claims.

In the drawings, Figure l is a perspective view of the completecutter-bar, showing the parts in locked engagement. Fig. 2 is a sideelevation of the same. Fig. 3 is a top plan View of the cutter-bar, thelocking-bar being removed. Fig. et is a side elevation of thecutter-bar. Fig. 5 is a similar View ot'- the locking-bar. Fig. 6 is atransverse sectional view taken on the line @c of Fig. Fig. 7 is asimilar view taken on the line y J of Fig. 5. Fig. 8 is a plan view ofone of the knives, and Fig. 9 is an edge view of the same.

Referring to the drawings, A designates the cutter-bar, one end of whichis bent upon itself to form an arm l, between which and the said bar issecured the guide-plate B. The arm is provided with a standard f2,having a threaded opening near its upper end designed to be engaged bythe enlarged portion of a diiterentially-threaded bolt 3, the reducedportion of which engages a superimposed locking-bar C, whereby to .causethe .said bar to reciprocate as the bolt 1s rotated'in oppositedirections, for a purpose that will be described farther on. The uppersurface of the cutter-bar is provided with a series of transverse bosses4i, the side edges of which are underbeveled, as shown at 5, thusforming a series of transverse dovetail recesses 6, in which fit theshanks 7 of the knives I). The sides S of the Shanks and also theshoulders 9 of the knives are beveled, the beveled portion of the Shanksengaging the underbeveled portions of the bosses and the beveledshoulders of the knives engaging the underbeveled front edges 10 of thebosses. By thus beveling the slianks of the knives and providingdovetail recesses in the cutter-bar, in which they it, a rigidadjustment of the knives against lateral play is secured, and by meansof the underbeveled front edges of the bosses all danger'cf verticalplay of the knives will be overcome.

The locking-bar C is provided at one end with a standard 1l, which isengaged by the reduced threaded end 12 of the bolt 3, and the under sideof the said bar is provided with a series of dovetail locking-lugs 13,designed to engage similarly-shaped recesses 14:, formed in the sideedges of the bosses 4;, and also with dovetail recesses 15, formed inone side of the shanks, whereby the knives are not only locked in place,but the locking-bar is prevented from having any vertical play, inasmuchas one portion of each of the lugs 13 is in engagement with the recesses14 and the other portion with the recesses 15,

In securing the knives in place on the cutter-bar the bolt 3 is turnedso as to draw the lugs 13 back into the recesses 14 to allow the shanksof the knives to be inserted within the recesses 6, which shanks are ofa width to fit snugly therein. The bolt is then turned in the oppositedirection, thus projecting the locking-bar forward and bringing the lugsinto engagement with the recesses 15, thus locking the knives in place.By reason of the differentially-threaded bolt the lockingbar can bereciprocated with ease either to lock the rknives in place or to permitof the removal of one or more of them when desired.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination, with a cutter-bar pro- IOO vided on its upper sidewith recessed bosses, and recessed knives fitting between said bosses,of a superimposed locking-bar having lugs upon its under side adapted toengage the recesses in the bosses and in the knives.

2. The combination, with a cutter-bar provided on its upper sidewithrecessed bosses, and recessed knives ittin g between said bosses, of asuperimposed longitudinallymovable locking-bar having lugs upon itsunder side adapted to be received wholly within the bosses, and meansfor moving the locking-bar so that its lugs will at the same time be inengagement with the recesses in the bosses and in the knives.

3. The combination, with a cutter-bar provided on its upperside withrecessed bosses, and. recessed knives fitting between said bosses, of asuperimposed longitudinallymovalole locking-bar having lugs upon itsunder side adapted to engage the recesses in the bosses and in theknives, and a differentiallythreaded bolt connecting the cutter-bar andthe locking-bar.

4. The combination, with the cutter bar having a series of transverserecesses and 1ongitudinal recesses connecting therewith, of a series ofknives inserted in the transverse recesses and recessed to register withthe longitudinal recesses, a superimposed lockingbar having lugsengaging the longitudinal recesses, and means for projecting thelockingbar to bring the said lugs also into engagement with the recessesin the knives.

5. The combination, with a cutter-bar carrying transverse bosses havingunderbeveled side and front edges, of knives having beveled Shanksengaging the side edges, and beveled shoulders engaging the front edgesof the said bosses, and a superimposed lockingbar interlocking with theknives and with the cutter-bar.

In testimony whereof I affix my signature in presence of two witnesses.

JERRY L. RIELEY. lVitnesses:

WM. HUNTER MYERs, R. M. ELLIOTT.

